Constraints on the induced gravitational wave background from primordial black holes

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.083521· OSTI ID:21541462

Bugaev, Edgar; Klimai, Peter ^[1]

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1. Institute for Nuclear Research, Russian Academy of Sciences, 60th October Anniversary Prospect 7a, 117312 Moscow (Russian Federation)

We perform a consistent calculation of primordial black hole (PBH) mass spectrum and second-order induced gravitational wave (GW) background produced from primordial scalar perturbations in radiation era of the early Universe. It is shown that the maximal amplitudes of the second-order GW spectrum that can be approached without conflicting with the PBH data do not depend significantly on the shape of primordial perturbation spectrum. The constraints on the GW background obtained in previous works are extended to a wider GW frequency range. We discuss the applicability of the currently available pulsar timing limits for obtaining the constraints on scalar power spectrum and PBH abundance and show that they can be used for strongly constraining the PBH number density in the PBH mass range {approx}(0.03-10)M{sub {center_dot}}.

• OSTI ID: 21541462
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 8; Other Information: DOI: 10.1103/PhysRevD.83.083521; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
AMPLITUDES
BLACK HOLES
COMPUTERIZED SIMULATION
DENSITY
DISTURBANCES
FREQUENCY RANGE
GRAVITATIONAL WAVES
LIMITING VALUES
MASS
MASS SPECTRA
PERTURBATION THEORY
PULSARS
UNIVERSE
COSMIC RADIO SOURCES
PHYSICAL PROPERTIES
SIMULATION
SPECTRA